using System.Security.Cryptography;
using System.Text;

public class sha1demo {
  public static void Main(string[] args) {
    SHA1 md = new SHA1CryptoServiceProvider(); 
    string data = "It's just data";

    byte[] digest = md.ComputeHash(Encoding.Default.GetBytes(data));

    foreach (byte i in digest) {
      System.Console.Write(i.ToString("x2"));
    }
  }
}